Digital Card Adapter for High-Pin SD Data Transfer
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Solution Overview
Problem
Existing digital card adapters face challenges in accommodating a large number of electrical conductive units, leading to potential damage and deformation, especially when transferring data between cards with 17-pin or more connections, due to limited space and complex production processes.
Innovation Solution
A digital card adapter design featuring a printed circuit board mounted inside a card-shape cover with a top and bottom cover configuration, including a slot for receiving a digital card, with a set of terminals and insulative housing that securely accommodates different-sized SD cards by using a combination of first and second arms and grooves, ensuring proper electrical connection and retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of electrical conductive units is increased to 17-pin or more, then data transfer capability between different card sizes is improved, but the limited space inside the cover causes damage and deformation
Solution Approach 1:
The patent transitions from a flat 2D arrangement of conductive units to a 3D立体 structure by adding vertical layers. The circuit board is positioned at the front end of the bottom cover with conductive units arranged in multiple dimensions, allowing 17-pin or more connections without increasing the card's external footprint, thus resolving the space limitation while maintaining structural integrity
Solution Approach 2:
The patent embeds the circuit board and conductive units within the card adapter structure. The circuit board is disposed at the front end of the bottom cover, with conductive units nested inside the cover rather than protruding outward. This nesting approach allows multiple conductive units to coexist in limited space without causing deformation or damage to the card structure
2Adaptability or versatility
If the number of electrical conductive units is increased to 17-pin or more, then data transfer capability is improved, but the production process becomes more complex
Solution Approach 1:
The patent integrates the circuit board, conductive units, and card holder into a single unified structure. The circuit board is disposed at the front end of the bottom cover and combines multiple functions: electrical connection, structural support, and card retention. This merging reduces the number of separate components and simplifies the production process while accommodating 17-pin or more conductive units
Solution Approach 2:
The circuit board serves multiple functions simultaneously: it provides electrical connections through conductive units, structurally supports the card adapter, and enables data transfer between different card sizes. This multi-functionality reduces the need for separate specialized components, thereby simplifying the overall production process while maintaining high adaptability
Data Source
AI summary
A digital card adapter comprises a cover configured to a large-size appearance in shape of the SD card, a printed circuit board disposed at the cover, a set of terminals disposed in the center of the cover, and an insulative housing. The adapter provides a print circuit board being mounted inside a card-shape cover, and accomplishes to transfer data there between two different sizes cards in accordance with standard of SD 4.0 specification, meanwhile, achieves adapting two SD 4.0 card in different sizes.